Corsair hydro series h55 high performance liquid cpu cooler the easy performance upgrade for your intel cpu your pc will run cooler and quieter when you replace your cpursquos standard heatsink with a hydro series h55 installation is straightforward if you can get to the back of your pcrsquos motherboard you can install an h55 all yoursquoll need is a screwdriver great for smaller cases the compact components and flexible tubing make h55 easy to install even if yoursquore cramped